lualatex: files with permissions -rw-rw-rw-

[Martin Konôpka]

(1) I have a sample file testfile.tex :

[konopka@notebook tmp] cat testfile.tex
\documentclass[12pt,a4paper]{report}

\usepackage{polyglossia}

\begin{document}
Qwerty.
\end{document}

(2) I run the command
lualatex testfile.tex

Lualatex produces .aux and .pdf files with permissions 666 , which is insecure:
-rw------- 1 konopka konopka 104 2014-06-22 22:26 testfile.tex
-rw-rw-rw- 1 konopka konopka 8 2014-06-22 22:27 testfile.aux
-rw-rw-rw- 1 konopka konopka 3383 2014-06-22 22:27 testfile.pdf
-rw------- 1 konopka konopka 32302 2014-06-22 22:27 testfile.log

If I use a sample file without the option \usepackage{polyglossia} then the permission are all right (600).
Note that I have my umask set to 0077.
It looks that lualatex (with \usepackage{polyglossia}) is ignorant of my umask.

I found a complaint about the files permissions also on page
http://tug.org/pipermail/luatex/2010-September/001998.html

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: texlive-luatex 2013.20140215-1
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic i686
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: i386
Date: Sun Jun 22 22:34:02 2014
InstallationDate: Installed on 2014-03-05 (108 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140304)
PackageArchitecture: all
SourcePackage: texlive-base
UpgradeStatus: No upgrade log present (probably fresh install)